Nandhakumar Kanagarajan, MD
Gastroenterology · Canton, GANPI 1902819667
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.2% of the total across 606 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 37 manufacturers reported payments, led by AbbVie at 27.5% of the total. Among gastroenterology clinicians in GA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 606 payments — averaging $23.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$4K
- Boston Scientific$1K
- Johnson & Johnson$1K
- Takeda Pharmaceuticals U.S.A., Inc.$976
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$810
- Medtronic$659
- plus $5K from 31 others
What the payments were for
- Travel & lodging$5614%
- Food & beverage$13,32295%
- Education$1091%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| AbbVie(2 entities) | 214 | $3,842 |
| Boston Scientific | 16 | $1,494 |
| Johnson & Johnson(3 entities) | 46 | $1,198 |
| Takeda Pharmaceuticals U.S.A., Inc. | 58 | $976 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 56 | $810 |
| Medtronic(2 entities) | 6 | $659 |
| Sanofi | 23 | $590 |
| Intercept Pharmaceuticals, Inc. | 26 | $510 |
| Regeneron Healthcare Solutions, Inc. | 16 | $419 |
| Pfizer | 15 | $354 |
| Lilly USA, LLC | 16 | $294 |
| Ardelyx, Inc. | 10 | $289 |
| Ferring Pharmaceuticals Inc. | 4 | $268 |
| Nestle Healthcare Nutrition Inc. | 11 | $266 |
| Vivus LLC | 14 | $262 |
| QOL Medical, LLC | 9 | $223 |
| Bristol Myers Squibb | 11 | $190 |
| Aimmune Therapeutics, Inc. | 6 | $179 |
| Gilead | 5 | $177 |
| Conmed Corporation | 1 | $140 |
| Ironwood Pharmaceuticals, Inc | 9 | $139 |
| Madrigal Pharmaceuticals | 3 | $101 |
| Phathom Pharmaceuticals, Inc. | 5 | $77 |
| Janssen Scientific Affairs, LLC | 1 | $73 |
| UCB, Inc. | 6 | $72 |
| Regeneron | 1 | $60 |
| Mallinckrodt Hospital Products Inc. | 3 | $58 |
| Merck | 3 | $49 |
| Amgen | 2 | $46 |
| Biocon Biologics Inc | 2 | $44 |
| Redhill Biopharma Inc. | 2 | $29 |
| Boehringer Ingelheim | 1 | $22 |
| Organon | 1 | $19 |
| Ipsen Biopharmaceuticals, Inc | 1 | $18 |
| Shionogi Inc | 1 | $16 |
| Evoke Pharma, Inc. | 1 | $15 |
| E.r. Squibb & Sons, L.L.C. | 1 | $15 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- AXIOS$447
- ZENPEP$374
- GI Genius$332
- REBYOTA$245
- Mavyret$219
- GENERAL - BILIARY DEVICES$167
- NEXPOWDER$157
- INTERSTIM$148
- CONMED HEMOSTASIS$140
- CONMED BILIARY$140
- Tremfya$131
- XELJANZ$129
- EXALT Model D$128
- LINX Reflux Management System$125
- Creon$125
- Skyrizi$116
- IBSRELA$116
- Livdelzi$115
- Rinvoq$110
- EXALT$104
How this compares
$13,992 in reported general payments places this provider in the 90th percentile of 492 gastroenterology providers in Georgia.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| StelaraUstekinumab | 12 | $330,175 |
| CreonLipase/Protease/Amylase | 41 | $199,647 |
| XifaxanRifaximin | 19 | $58,525 |
| LinzessLinaclotide | 61 | $57,311 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 85 | $5,728 |
| Pantoprazole Sodium | 342 | $4,749 |
| Dexlansoprazole DrDexlansoprazole | 14 | $4,373 |
| Sucralfate | 82 | $2,903 |
| Promethazine Hcl | 42 | $2,739 |
| Lubiprostone | 20 | $1,690 |
| Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine | 24 | $834 |
| Omeprazole | 49 | $741 |
| Ondansetron OdtOndansetron | 58 | $707 |
| Ondansetron HclOndansetron Hcl/Pf | 32 | $690 |
| Ondansetron Hcl | 15 | $428 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Johnson & JohnsonStelara | $1,198 | $330,17512 claims |
| AbbVieCreon, Linzess | $3,842 | $256,958102 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan | $810 | $58,52519 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 90th percentile of 492 gastroenterology providers in Georgia.
Other gastroenterology in Canton
- Bruce KalminCanton$13K
- Nitin GuptaAtlanta$1.1M
- Cynthia RudertAtlanta$720K
- Douglas WolfAtlanta$668K
- Kavita KongaraAtlanta$492K
- Girish AnandAtlanta$425K
- Satish RaoAugusta$335K
- Roshan ShresthaAtlanta$317K
- Hetal KarsanAtlanta$314K
- Aja McCutchenWinder$310K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.